Finding the Fourth Proportional to 210,888.58, 291,026.23 and 115,395.28
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Solution
The fourth proportional to 210,888.58, 291,026.23 and 115,395.28 is: 159,245.48
Step by Step Solution
- Step 1: Write the proportion equation
210,888.58 : 291,026.23 = 115,395.28 : x - Step 2: Convert to fraction form
210,888.58/291,026.23 = 115,395.28/x - Step 3: Cross multiply
210,888.58x = 291,026.23 × 115,395.28 - Step 4: Simplify right side
210,888.58x = 33,583,053,298.19 - Step 5: Solve for x
x = 33,583,053,298.19/210,888.58 - Step 6: Final answer
x = 159,245.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.